let clockOption = {
    animationDurationUpdate: 300,
    series: [
        {
            name: 'hour',
            type: 'gauge',
            startAngle: 90,
            endAngle: -270,
            min: 0,
            max: 12,
            splitNumber: 12,
            clockwise: true,
            axisLine: {
                lineStyle: {
                    width: 3,
                    color: [[1, 'rgba(255,255,255,.9)']],
                    shadowColor: 'rgba(0, 0, 0, 0.5)',
                    shadowBlur: 15
                }
            },
            axisTick: {
                distance: 5,
            },
            splitLine: {
                distance: 5,
                lineStyle: {
                    color: 'rgba(255, 255, 255, 0.9)',
                    shadowColor: 'rgba(0, 0, 0, 0.3)',
                    shadowBlur: 3,
                    shadowOffsetX: 1,
                    shadowOffsetY: 2
                }
            },
            axisLabel: {
                fontSize: 0,
                distance: 10,
                formatter: function (value) {
                    if (value === 0) {
                        return '';
                    }
                    return value + '';
                }
            },
            // echarts 图标
            // anchor: {
            //     show: true,
            //     icon: 'path://M532.8,70.8C532.8,70.8,532.8,70.8,532.8,70.8L532.8,70.8C532.7,70.8,532.8,70.8,532.8,70.8z M456.1,49.6c-2.2-6.2-8.1-10.6-15-10.6h-37.5v10.6h37.5l0,0c2.9,0,5.3,2.4,5.3,5.3c0,2.9-2.4,5.3-5.3,5.3v0h-22.5c-1.5,0.1-3,0.4-4.3,0.9c-4.5,1.6-8.1,5.2-9.7,9.8c-0.6,1.7-0.9,3.4-0.9,5.3v16h10.6v-16l0,0l0,0c0-2.7,2.1-5,4.7-5.3h10.3l10.4,21.2h11.8l-10.4-21.2h0c6.9,0,12.8-4.4,15-10.6c0.6-1.7,0.9-3.5,0.9-5.3C457,53,456.7,51.2,456.1,49.6z M388.9,92.1h11.3L381,39h-3.6h-11.3L346.8,92v0h11.3l3.9-10.7h7.3h7.7l3.9-10.6h-7.7h-7.3l7.7-21.2v0L388.9,92.1z M301,38.9h-10.6v53.1H301V70.8h28.4l3.7-10.6H301V38.9zM333.2,38.9v10.6v10.7v31.9h10.6V38.9H333.2z M249.5,81.4L249.5,81.4L249.5,81.4c-2.9,0-5.3-2.4-5.3-5.3h0V54.9h0l0,0c0-2.9,2.4-5.3,5.3-5.3l0,0l0,0h33.6l3.9-10.6h-37.5c-1.9,0-3.6,0.3-5.3,0.9c-4.5,1.6-8.1,5.2-9.7,9.7c-0.6,1.7-0.9,3.5-0.9,5.3l0,0v21.3c0,1.9,0.3,3.6,0.9,5.3c1.6,4.5,5.2,8.1,9.7,9.7c1.7,0.6,3.5,0.9,5.3,0.9h33.6l3.9-10.6H249.5z M176.8,38.9v10.6h49.6l3.9-10.6H176.8z M192.7,81.4L192.7,81.4L192.7,81.4c-2.9,0-5.3-2.4-5.3-5.3l0,0v-5.3h38.9l3.9-10.6h-53.4v10.6v5.3l0,0c0,1.9,0.3,3.6,0.9,5.3c1.6,4.5,5.2,8.1,9.7,9.7c1.7,0.6,3.4,0.9,5.3,0.9h23.4h10.2l3.9-10.6l0,0H192.7z M460.1,38.9v10.6h21.4v42.5h10.6V49.6h17.5l3.8-10.6H460.1z M541.6,68.2c-0.2,0.1-0.4,0.3-0.7,0.4C541.1,68.4,541.4,68.3,541.6,68.2L541.6,68.2z M554.3,60.2h-21.6v0l0,0c-2.9,0-5.3-2.4-5.3-5.3c0-2.9,2.4-5.3,5.3-5.3l0,0l0,0h33.6l3.8-10.6h-37.5l0,0c-6.9,0-12.8,4.4-15,10.6c-0.6,1.7-0.9,3.5-0.9,5.3c0,1.9,0.3,3.7,0.9,5.3c2.2,6.2,8.1,10.6,15,10.6h21.6l0,0c2.9,0,5.3,2.4,5.3,5.3c0,2.9-2.4,5.3-5.3,5.3l0,0h-37.5v10.6h37.5c6.9,0,12.8-4.4,15-10.6c0.6-1.7,0.9-3.5,0.9-5.3c0-1.9-0.3-3.7-0.9-5.3C567.2,64.6,561.3,60.2,554.3,60.2z',
            //     showAbove: false,
            //     offsetCenter: [0, '-35%'],
            //     size: 120,
            //     keepAspect: true,
            //     itemStyle: {
            //         color: '#707177'
            //     }
            // },
            pointer: {
                icon: 'path://M2.9,0.7L2.9,0.7c1.4,0,2.6,1.2,2.6,2.6v115c0,1.4-1.2,2.6-2.6,2.6l0,0c-1.4,0-2.6-1.2-2.6-2.6V3.3C0.3,1.9,1.4,0.7,2.9,0.7z',
                width: 4,
                length: '55%',
                offsetCenter: [0, '8%'],
                itemStyle: {
                    color: '#ffc943',
                    shadowColor: 'rgba(0, 0, 0, 0.3)',
                    shadowBlur: 8,
                    shadowOffsetX: 2,
                    shadowOffsetY: 4
                }
            },
            detail: {
                show: false
            },
            title: {
                offsetCenter: [0, '30%']
            },
            data: [
                {
                    value: 0
                }
            ]
        },
        {
            name: 'minute',
            type: 'gauge',
            startAngle: 90,
            endAngle: -270,
            min: 0,
            max: 60,
            clockwise: true,
            axisLine: {
                show: false
            },
            splitLine: {
                show: false
            },
            axisTick: {
                show: false
            },
            axisLabel: {
                show: false
            },
            pointer: {
                icon: 'path://M2.9,0.7L2.9,0.7c1.4,0,2.6,1.2,2.6,2.6v115c0,1.4-1.2,2.6-2.6,2.6l0,0c-1.4,0-2.6-1.2-2.6-2.6V3.3C0.3,1.9,1.4,0.7,2.9,0.7z',
                width: 3,
                length: '70%',
                offsetCenter: [0, '8%'],
                itemStyle: {
                    color: '#ffc943',
                    shadowColor: 'rgba(0, 0, 0, 0.3)',
                    shadowBlur: 8,
                    shadowOffsetX: 2,
                    shadowOffsetY: 4
                }
            },
            anchor: {
                show: true,
                size: 10,
                showAbove: false,
                itemStyle: {
                    borderWidth: 3,
                    borderColor: '#ffc943',
                    shadowColor: 'rgba(0, 0, 0, 0.3)',
                    shadowBlur: 8,
                    shadowOffsetX: 2,
                    shadowOffsetY: 4
                }
            },
            detail: {
                show: false
            },
            title: {
                offsetCenter: ['0%', '-40%']
            },
            data: [
                {
                    value: 0
                }
            ]
        },
        {
            name: 'second',
            type: 'gauge',
            startAngle: 90,
            endAngle: -270,
            min: 0,
            max: 60,
            animationEasingUpdate: 'bounceOut',
            clockwise: true,
            axisLine: {
                show: false
            },
            splitLine: {
                show: false
            },
            axisTick: {
                show: false
            },
            axisLabel: {
                show: false
            },
            pointer: {
                icon: 'path://M2.9,0.7L2.9,0.7c1.4,0,2.6,1.2,2.6,2.6v115c0,1.4-1.2,2.6-2.6,2.6l0,0c-1.4,0-2.6-1.2-2.6-2.6V3.3C0.3,1.9,1.4,0.7,2.9,0.7z',
                width: 2,
                length: '85%',
                offsetCenter: [0, '8%'],
                itemStyle: {
                    color: '#ffc943',
                    shadowColor: 'rgba(0, 0, 0, 0.3)',
                    shadowBlur: 8,
                    shadowOffsetX: 2,
                    shadowOffsetY: 4
                }
            },
            anchor: {
                show: true,
                size: 15,
                showAbove: true,
                itemStyle: {
                    color: '#ffc943',
                    shadowColor: 'rgba(0, 0, 0, 0.3)',
                    shadowBlur: 8,
                    shadowOffsetX: 2,
                    shadowOffsetY: 4
                }
            },
            detail: {
                show: false
            },
            title: {
                offsetCenter: ['0%', '-40%']
            },
            data: [
                {
                    value: 0
                }
            ]
        }
    ]
};
setInterval(setTime, 1000);

function setTime() {
    var date = new Date();
    var second = date.getSeconds();
    var minute = date.getMinutes() + second / 60;
    var hour = (date.getHours() % 12) + minute / 60;

    setDate(date);

    clockChart.setOption({
        series: [
            {
                name: 'hour',
                animation: hour !== 0,
                data: [{value: hour}]
            },
            {
                name: 'minute',
                animation: minute !== 0,
                data: [{value: minute}]
            },
            {
                animation: second !== 0,
                name: 'second',
                data: [{value: second}]
            }
        ]
    });
}

var clockChart = echarts.init(document.getElementById('clock'));
clockChart.setOption(clockOption);

function setDate(date = new Date()) {
    var year = date.getFullYear();
    var month = date.getMonth() + 1;
    if (month < 10) month = '0' + month;
    var day = date.getDate();
    if (day < 10) day = '0' + day;

    var dateStr = `${year}年${month}月${day}日`
    $('.left-nav .date').html(dateStr)
}

setTime()